mirror of
https://github.com/kanjitalk755/macemu.git
synced 2024-11-22 13:31:08 +00:00
refactor get_system_info() into a function
This commit is contained in:
asvitkine
parent
57416ef7b4
commit
cea73a29ed
@ -384,11 +384,203 @@ static bool valid_vmdir(const char *path)
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return false;
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}
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static void get_system_info(void)
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{
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#if !EMULATED_PPC
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FILE *proc_file;
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#endif
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PVR = 0x00040000; // Default: 604
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CPUClockSpeed = 100000000; // Default: 100MHz
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BusClockSpeed = 100000000; // Default: 100MHz
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TimebaseSpeed = 25000000; // Default: 25MHz
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#if EMULATED_PPC
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PVR = 0x000c0000; // Default: 7400 (with AltiVec)
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#elif defined(__APPLE__) && defined(__MACH__)
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proc_file = popen("ioreg -c IOPlatformDevice", "r");
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if (proc_file) {
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char line[256];
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bool powerpc_node = false;
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while (fgets(line, sizeof(line) - 1, proc_file)) {
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// Read line
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int len = strlen(line);
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if (len == 0)
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continue;
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line[len - 1] = 0;
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// Parse line
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if (strstr(line, "o PowerPC,"))
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powerpc_node = true;
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else if (powerpc_node) {
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uint32 value;
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char head[256];
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if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
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PVR = value;
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else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
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CPUClockSpeed = value;
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else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
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BusClockSpeed = value;
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else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
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TimebaseSpeed = value;
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else if (strchr(line, '}'))
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powerpc_node = false;
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}
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}
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fclose(proc_file);
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} else {
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sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
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WarningAlert(str);
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}
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#else
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proc_file = fopen("/proc/cpuinfo", "r");
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if (proc_file) {
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// CPU specs from Linux kernel
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// TODO: make it more generic with features (e.g. AltiVec) and
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// cache information and friends for NameRegistry
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static const struct {
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uint32 pvr_mask;
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uint32 pvr_value;
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const char *cpu_name;
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}
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cpu_specs[] = {
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{ 0xffff0000, 0x00010000, "601" },
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{ 0xffff0000, 0x00030000, "603" },
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{ 0xffff0000, 0x00060000, "603e" },
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{ 0xffff0000, 0x00070000, "603ev" },
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{ 0xffff0000, 0x00040000, "604" },
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{ 0xfffff000, 0x00090000, "604e" },
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{ 0xffff0000, 0x00090000, "604r" },
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{ 0xffff0000, 0x000a0000, "604ev" },
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{ 0xffffffff, 0x00084202, "740/750" },
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{ 0xfffff000, 0x00083000, "745/755" },
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{ 0xfffffff0, 0x00080100, "750CX" },
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{ 0xfffffff0, 0x00082200, "750CX" },
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{ 0xfffffff0, 0x00082210, "750CXe" },
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{ 0xffffff00, 0x70000100, "750FX" },
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{ 0xffffffff, 0x70000200, "750FX" },
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{ 0xffff0000, 0x70000000, "750FX" },
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{ 0xffff0000, 0x70020000, "750GX" },
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{ 0xffff0000, 0x00080000, "740/750" },
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{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
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{ 0xffff0000, 0x000c0000, "7400" },
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{ 0xffff0000, 0x800c0000, "7410" },
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{ 0xffffffff, 0x80000200, "7450" },
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{ 0xffffffff, 0x80000201, "7450" },
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{ 0xffff0000, 0x80000000, "7450" },
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{ 0xffffff00, 0x80010100, "7455" },
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{ 0xffffffff, 0x80010200, "7455" },
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{ 0xffff0000, 0x80010000, "7455" },
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{ 0xffff0000, 0x80020000, "7457" },
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{ 0xffff0000, 0x80030000, "7447A" },
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{ 0xffff0000, 0x80040000, "7448" },
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{ 0x7fff0000, 0x00810000, "82xx" },
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{ 0x7fff0000, 0x00820000, "8280" },
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{ 0xffff0000, 0x00400000, "Power3 (630)" },
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{ 0xffff0000, 0x00410000, "Power3 (630+)" },
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{ 0xffff0000, 0x00360000, "I-star" },
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{ 0xffff0000, 0x00370000, "S-star" },
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{ 0xffff0000, 0x00350000, "Power4" },
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{ 0xffff0000, 0x00390000, "PPC970" },
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{ 0xffff0000, 0x003c0000, "PPC970FX" },
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{ 0xffff0000, 0x00440000, "PPC970MP" },
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{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
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{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
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{ 0xffff0000, 0x003e0000, "POWER6" },
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{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
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{ 0x7fff0000, 0x00900000, "PA6T" },
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{ 0, 0, 0 }
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};
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char line[256];
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while(fgets(line, 255, proc_file)) {
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// Read line
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int len = strlen(line);
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if (len == 0)
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continue;
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line[len-1] = 0;
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// Parse line
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int i;
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float f;
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char value[256];
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if (sscanf(line, "cpu : %[^,]", value) == 1) {
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// Search by name
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const char *cpu_name = NULL;
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for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
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if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
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cpu_name = cpu_specs[i].cpu_name;
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PVR = cpu_specs[i].pvr_value;
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break;
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}
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}
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if (cpu_name == NULL)
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printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
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else
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printf("Found a PowerPC %s processor\n", cpu_name);
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}
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if (sscanf(line, "clock : %fMHz", &f) == 1)
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CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
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else if (sscanf(line, "clock : %dMHz", &i) == 1)
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CPUClockSpeed = BusClockSpeed = i * 1000000;
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}
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fclose(proc_file);
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} else {
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sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
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WarningAlert(str);
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}
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// Get actual bus frequency
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proc_file = fopen("/proc/device-tree/clock-frequency", "r");
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if (proc_file) {
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union { uint8 b[4]; uint32 l; } value;
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if (fread(value.b, sizeof(value), 1, proc_file) == 1)
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BusClockSpeed = value.l;
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fclose(proc_file);
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}
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// Get actual timebase frequency
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TimebaseSpeed = BusClockSpeed / 4;
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DIR *cpus_dir;
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if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
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struct dirent *cpu_entry;
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while ((cpu_entry = readdir(cpus_dir)) != NULL) {
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if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
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char timebase_freq_node[256];
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sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
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proc_file = fopen(timebase_freq_node, "r");
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if (proc_file) {
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union { uint8 b[4]; uint32 l; } value;
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if (fread(value.b, sizeof(value), 1, proc_file) == 1)
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TimebaseSpeed = value.l;
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fclose(proc_file);
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}
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}
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}
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closedir(cpus_dir);
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}
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#endif
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// Remap any newer G4/G5 processor to plain G4 for compatibility
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switch (PVR >> 16) {
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case 0x8000: // 7450
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case 0x8001: // 7455
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case 0x8002: // 7457
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case 0x8003: // 7447A
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case 0x8004: // 7448
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case 0x0039: // 970
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case 0x003c: // 970FX
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case 0x0044: // 970MP
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PVR = 0x000c0000; // 7400
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break;
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}
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D(bug("PVR: %08x (assumed)\n", PVR));
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}
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int main(int argc, char **argv)
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{
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char str[256];
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int rom_fd;
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FILE *proc_file;
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const char *rom_path;
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uint32 rom_size, actual;
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uint8 *rom_tmp;
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@ -592,189 +784,7 @@ int main(int argc, char **argv)
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vm_init();
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// Get system info
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PVR = 0x00040000; // Default: 604
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CPUClockSpeed = 100000000; // Default: 100MHz
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BusClockSpeed = 100000000; // Default: 100MHz
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TimebaseSpeed = 25000000; // Default: 25MHz
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#if EMULATED_PPC
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PVR = 0x000c0000; // Default: 7400 (with AltiVec)
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#elif defined(__APPLE__) && defined(__MACH__)
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proc_file = popen("ioreg -c IOPlatformDevice", "r");
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if (proc_file) {
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char line[256];
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bool powerpc_node = false;
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while (fgets(line, sizeof(line) - 1, proc_file)) {
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// Read line
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int len = strlen(line);
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if (len == 0)
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continue;
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line[len - 1] = 0;
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// Parse line
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if (strstr(line, "o PowerPC,"))
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powerpc_node = true;
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else if (powerpc_node) {
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uint32 value;
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char head[256];
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if (sscanf(line, "%[ |]\"cpu-version\" = <%x>", head, &value) == 2)
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PVR = value;
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else if (sscanf(line, "%[ |]\"clock-frequency\" = <%x>", head, &value) == 2)
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CPUClockSpeed = value;
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else if (sscanf(line, "%[ |]\"bus-frequency\" = <%x>", head, &value) == 2)
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BusClockSpeed = value;
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else if (sscanf(line, "%[ |]\"timebase-frequency\" = <%x>", head, &value) == 2)
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TimebaseSpeed = value;
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else if (strchr(line, '}'))
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powerpc_node = false;
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}
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}
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fclose(proc_file);
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} else {
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sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
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WarningAlert(str);
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}
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#else
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proc_file = fopen("/proc/cpuinfo", "r");
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if (proc_file) {
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// CPU specs from Linux kernel
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// TODO: make it more generic with features (e.g. AltiVec) and
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// cache information and friends for NameRegistry
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static const struct {
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uint32 pvr_mask;
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uint32 pvr_value;
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const char *cpu_name;
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}
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cpu_specs[] = {
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{ 0xffff0000, 0x00010000, "601" },
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{ 0xffff0000, 0x00030000, "603" },
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{ 0xffff0000, 0x00060000, "603e" },
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{ 0xffff0000, 0x00070000, "603ev" },
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{ 0xffff0000, 0x00040000, "604" },
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{ 0xfffff000, 0x00090000, "604e" },
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{ 0xffff0000, 0x00090000, "604r" },
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{ 0xffff0000, 0x000a0000, "604ev" },
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{ 0xffffffff, 0x00084202, "740/750" },
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{ 0xfffff000, 0x00083000, "745/755" },
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{ 0xfffffff0, 0x00080100, "750CX" },
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{ 0xfffffff0, 0x00082200, "750CX" },
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{ 0xfffffff0, 0x00082210, "750CXe" },
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{ 0xffffff00, 0x70000100, "750FX" },
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{ 0xffffffff, 0x70000200, "750FX" },
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{ 0xffff0000, 0x70000000, "750FX" },
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{ 0xffff0000, 0x70020000, "750GX" },
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{ 0xffff0000, 0x00080000, "740/750" },
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{ 0xffffffff, 0x000c1101, "7400 (1.1)" },
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{ 0xffff0000, 0x000c0000, "7400" },
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{ 0xffff0000, 0x800c0000, "7410" },
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{ 0xffffffff, 0x80000200, "7450" },
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{ 0xffffffff, 0x80000201, "7450" },
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{ 0xffff0000, 0x80000000, "7450" },
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{ 0xffffff00, 0x80010100, "7455" },
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{ 0xffffffff, 0x80010200, "7455" },
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{ 0xffff0000, 0x80010000, "7455" },
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{ 0xffff0000, 0x80020000, "7457" },
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{ 0xffff0000, 0x80030000, "7447A" },
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{ 0xffff0000, 0x80040000, "7448" },
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{ 0x7fff0000, 0x00810000, "82xx" },
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{ 0x7fff0000, 0x00820000, "8280" },
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{ 0xffff0000, 0x00400000, "Power3 (630)" },
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{ 0xffff0000, 0x00410000, "Power3 (630+)" },
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{ 0xffff0000, 0x00360000, "I-star" },
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{ 0xffff0000, 0x00370000, "S-star" },
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{ 0xffff0000, 0x00350000, "Power4" },
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{ 0xffff0000, 0x00390000, "PPC970" },
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{ 0xffff0000, 0x003c0000, "PPC970FX" },
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{ 0xffff0000, 0x00440000, "PPC970MP" },
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{ 0xffff0000, 0x003a0000, "POWER5 (gr)" },
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{ 0xffff0000, 0x003b0000, "POWER5+ (gs)" },
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{ 0xffff0000, 0x003e0000, "POWER6" },
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{ 0xffff0000, 0x00700000, "Cell Broadband Engine" },
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{ 0x7fff0000, 0x00900000, "PA6T" },
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{ 0, 0, 0 }
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};
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char line[256];
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while(fgets(line, 255, proc_file)) {
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// Read line
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int len = strlen(line);
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if (len == 0)
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continue;
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line[len-1] = 0;
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// Parse line
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int i;
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float f;
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char value[256];
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if (sscanf(line, "cpu : %[^,]", value) == 1) {
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// Search by name
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const char *cpu_name = NULL;
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for (int i = 0; cpu_specs[i].pvr_mask != 0; i++) {
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if (strcmp(cpu_specs[i].cpu_name, value) == 0) {
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cpu_name = cpu_specs[i].cpu_name;
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PVR = cpu_specs[i].pvr_value;
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break;
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}
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}
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if (cpu_name == NULL)
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printf("WARNING: Unknown CPU type '%s', assuming 604\n", value);
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else
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printf("Found a PowerPC %s processor\n", cpu_name);
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}
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if (sscanf(line, "clock : %fMHz", &f) == 1)
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CPUClockSpeed = BusClockSpeed = ((int64)f) * 1000000;
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else if (sscanf(line, "clock : %dMHz", &i) == 1)
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CPUClockSpeed = BusClockSpeed = i * 1000000;
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}
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fclose(proc_file);
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} else {
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sprintf(str, GetString(STR_PROC_CPUINFO_WARN), strerror(errno));
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WarningAlert(str);
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}
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// Get actual bus frequency
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proc_file = fopen("/proc/device-tree/clock-frequency", "r");
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if (proc_file) {
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union { uint8 b[4]; uint32 l; } value;
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if (fread(value.b, sizeof(value), 1, proc_file) == 1)
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BusClockSpeed = value.l;
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fclose(proc_file);
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}
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// Get actual timebase frequency
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TimebaseSpeed = BusClockSpeed / 4;
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DIR *cpus_dir;
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if ((cpus_dir = opendir("/proc/device-tree/cpus")) != NULL) {
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struct dirent *cpu_entry;
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while ((cpu_entry = readdir(cpus_dir)) != NULL) {
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if (strstr(cpu_entry->d_name, "PowerPC,") == cpu_entry->d_name) {
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char timebase_freq_node[256];
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sprintf(timebase_freq_node, "/proc/device-tree/cpus/%s/timebase-frequency", cpu_entry->d_name);
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proc_file = fopen(timebase_freq_node, "r");
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if (proc_file) {
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union { uint8 b[4]; uint32 l; } value;
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if (fread(value.b, sizeof(value), 1, proc_file) == 1)
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TimebaseSpeed = value.l;
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fclose(proc_file);
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}
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}
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}
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closedir(cpus_dir);
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}
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#endif
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// Remap any newer G4/G5 processor to plain G4 for compatibility
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switch (PVR >> 16) {
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case 0x8000: // 7450
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case 0x8001: // 7455
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case 0x8002: // 7457
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case 0x8003: // 7447A
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case 0x8004: // 7448
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case 0x0039: // 970
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case 0x003c: // 970FX
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case 0x0044: // 970MP
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PVR = 0x000c0000; // 7400
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break;
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}
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D(bug("PVR: %08x (assumed)\n", PVR));
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get_system_info();
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// Init system routines
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SysInit();
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